Symptoms Assume that you set up a database mirroring session in SQL Server 2012,2014 or 2016. You add a witness to support automatic failover. In a rare situation, the mirroring session may stop, and then the data is no longer synchronized. Additionally, an automatic failover doesn’t occur as expected. Resolution Update information This issue is fixed in the following cumulative updates for ...

Symptoms Assume that you set up a database mirroring session in SQL Server 2012,2014 or 2016. You add a witness to support automatic failover. In a rare situation, the mirroring session may stop, and then the data is no longer synchronized. Additionally, an automatic failover doesn’t occur as expected. Resolution Update information This issue is fixed in the following cumulative updates for ...

Symptoms When Accelerated Database Recovery is enabled and disabled on a database where mirroring was configured earlier in SQL Server 2019, you will notice that Database mirroring cannot be reconfigured on that database.

You configure database mirroring for a database in SQL Server 2005. In an application, you use SQL Native Client to connect to the instance of the principal server in the database mirroring session. In the application, you set the Failover_Partner option in the connection string to the mirror server.

Describes an issue in which the mirroring session stops synchronizing after doing rolling upgrade to SQL Server 2017.

Fixes an issue that triggers errors if database mirroring is configured by Transact-SQL in SQL Server 2016 and if no database activity occurs for more than 90 seconds.

The files that are contained in the hotfix package Symptoms You have a database mirroring session in SQL Server 2005 or in SQL Server 2008. The database name of the new database mirroring session is the same as an existing database mirroring session for which the witness server is either a witness or a partner server.

Fixes a problem in which an Always On secondary replica goes into a disconnecting state.

Fixes an issue in which database mirroring hits assert and mirroring session shows suspended state in SQL Server 2012 or SQL Server 2014.

Fixes a problem in which you configure database mirroring and then add more than one log transaction files to a folder that only exists on the principle server.